- Multivariable linear regression analysis of 6MWT ratio.
| Characteristic | β | SE | P-value |
|---|---|---|---|
| Blood-gas analysis | |||
| FeNO | 0.403 | 0.163 | 0.018 |
| Pulmonary function | |||
| DLCO | 4.355 | 1.458 | 0.005 |
6MWT: 6-minute walking test, SE: standard error, FeNO: exhaled nitric oxide, DLCO: diffusing capacity of the lungs for carbon monoxide